In the fast-evolving landscape of industrial manufacturing, mechanical structural design requires materials that provide not only load-bearing capability but also optimal environmental resistance and surface characteristics. "Aluminium Angle Black" profiles have transitioned from aesthetic accents to functional requirements in optical, semiconductor, and safety-critical applications.
Standard bright aluminum profiles reflect light, disrupting precision laser setups and sensor arrays in automated sorting lines. The matte black anodized surface mitigates light scattering and glare, ensuring precision in optical alignment systems.
Anodizing creates a controlled aluminum oxide layer (10um to 25um thickness) that is integral to the metal structure. This treatment prevents filiform corrosion and eliminates risks of peeling, cracking, or flaking under mechanical stress.
Precision-extruded structural black angles connect modular components without welding. This structural versatility allows engineers to rapidly assemble safety enclosures, storage units, and structural frames.
In line with our core business philosophy of "people-oriented, quality value, technological innovation, and win-win cooperation", Chengdu E&I Aluminum Industry Co., Ltd. is dedicated to the research, development, and manufacturing of aluminum alloy products with high difficulty, high precision, and demanding performance requirements.
Our technical foundation relies on partnership with The National Institute of Nonferrous Metals, which provides a professional aluminum alloy technology research and development team within China's light alloy industry. This allows us to offer clients comprehensive solutions for customized profiles, castings, and forgings.
Through advanced production and testing equipment, we ensure high product quality and deliver cost-effective commercial solutions. Over the years, we have served global automotive manufacturers, aerospace suppliers, and top-tier industrial firms, receiving recognition for product reliability.
We provide comprehensive service coverage from mold design and development to aluminum extrusion, automated anodizing, and powder coating lines. We design, manufacture, and assemble modular aluminum profile frames, industrial workbenches, protective safety guardrails, cleanroom structures, solar supports, and automated storage systems.
Our aluminum products are manufactured to meet high-precision requirements, featuring clean surface finishes, corrosion and oxidation resistance, and reliable structural integrity. They support anti-loosening and shock-resistant modular connections for various assembly and framing applications.
We serve as an efficient manufacturing partner, specializing in heavy-duty automated systems and structural frames designed for long-term operational reliability.
To help engineers specify the correct material grades, the table below provides technical data for standard industrial black anodized profiles manufactured by Chengdu E&I.
| Parameter / Feature | 6063-T5 Profile Specification | 6061-T6 Profile Specification | Testing Methodology |
|---|---|---|---|
| Tensile Strength (MPa) | ≥ 160 MPa | ≥ 265 MPa | ASTM E8/E8M |
| Yield Strength (MPa) | ≥ 110 MPa | ≥ 245 MPa | ASTM E8/E8M |
| Anodizing Coating Depth | 12μm - 15μm (Standard Class II) | 20μm - 25μm (Class I Heavy-Duty) | EN ISO 2360 (Eddy Current) |
| Surface Hardness | ≥ 8 HW | ≥ 15 HW | Webster Hardness Test |
| Corrosion Resistance | Neutral Salt Spray (NSS) > 240 hrs | NSS > 360 hrs | ISO 9227 / ASTM B117 |
| Thermal Conductivity | 200 W/(m·K) | 167 W/(m·K) | Standard Thermal Analysis |
Our anodized coating uses a precise electrochemical acid bath to transform the aluminum substrate surface. The resulting oxide layer is dyed using specialized inorganic black salts, sealing the pores to achieve UV resistance and color stability. This prevents peeling, even when exposed to fluctuating factory temperatures and mild chemical washdowns.
Managing supply chains requires balancing cost-efficiency with quality compliance and reliable logistics. Chengdu E&I operates from a primary manufacturing hub in China, providing logistical and structural advantages:
We manage the entire production workflow in-house, from billet casting to extrusion, machining, custom drilling, surface finishing, and packaging. This direct process control reduces lead times and minimizes the risk of damage during mid-process transport.
Through our partnership with the National Institute of Nonferrous Metals, we can adapt alloy formulas and aging treatments to match specific requirements for strength, flexural rigidity, or thermal properties.
All extrusions conform to dimensional standards, including ISO 2768-m, EN 755, and ASTM B221. For European and American markets, we provide complete compliance documentation, including RoHS and REACH declarations.
For international purchasing departments, procurement involves managing shipping logistics and technical specifications. Chengdu E&I provides dedicated support channels to streamline this process:
Strive to become one of the top three companies in China's aluminum alloy industry in terms of product competitiveness, innovation ability, and technical strength. We aim to provide customers with products and services of superior value, enabling our shareholders, employees, customers, partners, and society to benefit more from common development.
The company regards employees as wealth, understands their pursuits, provides them with better development space and competitive salary, and develops together.
Provide customers with outstanding products and services, and create more value for customers.
Continue technology research and development and investment, maintain the leading position and advantages of product technology in the same industry, and provide customers with first-class quality and high value-added products; innovation is the only magic weapon to surpass competitors, product innovation, technological innovation and Coordinate and advance management innovation to build the core competitiveness of the system.
Cooperate with the company's customers, employees, shareholders, and partners to create value for them, develop together, and achieve win-win results. We sincerely hope to become your strategic partner and create unique value for your business.
Technical details and procurement guidelines for black anodized aluminum angle profiles.
Black anodizing chemically converts the aluminum surface into a wear-resistant oxide layer, preventing peeling or flaking under load. Powder coating adds an external paint layer that can chip, making anodized finishes better suited for cleanrooms and automated conveyor systems.
6063-T5 offers a smooth surface finish and is suitable for frames, display stands, and machine guards. 6061-T6 provides higher yield strength and is recommended for structural load-bearing applications and heavy-duty industrial framing.
We protect black anodized profiles using plastic interleaving sleeves, shrink-wrapping, and foam cushioning, shipping them inside reinforced wooden crates to prevent movement and friction during transit.
Yes. We offer design support and tool production for custom profiles. Our CNC facilities perform cutting, drilling, tapping, and milling based on CAD drawings prior to anodization.
Our extrusions comply with EN 755 and ASTM B221 standards. We monitor tool wear and inspect profiles using multi-axis calipers, digital projectors, and coordinate measuring machines (CMM).
Yes. By adjusting the etching and chemical polishing parameters before anodization, we can supply matte, semi-gloss, or bright black finishes based on project specifications.
